Giuliana Rancic is finally speaking out on the rumors surrounding her weight, PerezHilton reports.

Rancic, who is fed up with the rampant speculation as to whether she's suffering from a cancer relapse or eating disorder, is getting candid about the real reason for her thin frame.

According to the 40-year-old, a cancer suppressing medication is to blame for her inability to maintain a healthy weight.

For those who don't remember, the momma of one bravely fought and survived a 2011 breast cancer diagnosis.

The red carpet expert revealed: "Some people were saying, 'The cancer is probably back,' and they were accusing me of every eating disorder. I thought to myself, 'God, if someone really thought I had an eating disorder, what a horrible way to approach it.' It's really hurtful. I'm sorry that some people think I'm disgustingly skinny, as they put it, but there's nothing I can do. I'm lucky that I even have the type of cancer that reacts to the medicine."

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